A world connected to the Land of the Moon. In order to marry Queen Kaguya and gain the right to become King of the Moon, warriors from the Land of the Sun set out for the Moon in search of the five treasures she demanded! Shiro the Bamboo Cutter, who lost his father in the conflict, decides to travel to the Moon to put an end to the fighting. In front of the gate leading to the Moon, Shiro meets five warriors said to be the strongest!